Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE1902138480Dexternal-prioritypatent/DE138480C/de
Application filed by Rudolf NeumuellerfiledCriticalRudolf Neumueller
Application grantedgrantedCritical
Publication of AT13664BpublicationCriticalpatent/AT13664B/de